Global Patent Index - EP 3233326 A1

EP 3233326 A1 2017-10-25 - METHOD AND DEVICE FOR FORGING A WORKPIECE IN BAR FORM

Title (en)

METHOD AND DEVICE FOR FORGING A WORKPIECE IN BAR FORM

Title (de)

VERFAHREN UND VORRICHTUNG ZUM SCHMIEDEN EINES STABFÖRMIGEN WERKSTÜCKS

Title (fr)

PROCÉDÉ ET DISPOSITIF POUR MARTELER UNE PIÈCE EN FORME DE BARRE

Publication

EP 3233326 A1 (DE)

Application

EP 15825907 A

Priority

  • AT 509112014 A
  • AT 2015050317 W

Abstract (en)

[origin: WO2016094919A1] A description is given of a method and a device for forging a workpiece (5) in bar form, which is deformed with the aid of forging tools (1, 2, 3, 4) in the sense of a cross-sectional displacement perpendicular to the forging axis (a) and is subjected to an axial advancement and possibly a rotation about the forging axis (a) during the pauses in the engagement of the forging tools (1, 2, 3, 4). In order to achieve an advantageous grain refinement, it is proposed that the workpiece (5) is deformed in the sense of the cross-sectional displacement perpendicular to the forging axis (a) in a bending zone (13) between two central supports (11) by means of the forging tools (1, 2, 3, 4) acting on the workpiece (5) radially in relation to the forging axis (a).

IPC 8 full level (invention and additional information)

B21J 1/02 (2006.01); B21J 7/14 (2006.01); B21J 13/02 (2006.01); C21D 7/02 (2006.01)

CPC (invention and additional information)

B21J 13/02 (2013.01); B21J 1/025 (2013.01); B21J 7/14 (2013.01); C21D 7/10 (2013.01); C21D 7/02 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

EPO simple patent family

WO 2016094919 A1 20160623; AT 516506 A4 20160615; AT 516506 B1 20160615; EP 3233326 A1 20171025; US 2017320125 A1 20171109

INPADOC legal status


2018-03-28 [DAV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (IN ANY COUNTRY) (DELETED)

2018-03-28 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2017-10-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170526

2017-10-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-10-25 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN:

- Countries: MA MD

2017-10-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME